I wrote code to remove effect from player suck as blindness under certain situcation:

    @SubscribeEvent
    public static void shadowbornEnchantmentEvent(TickEvent.PlayerTickEvent event){
        if(!event.player.world.isRemote()){
            if(event.player.isPotionActive(Effects.BLINDNESS)){
                if(event.player.world.getLight(new BlockPos(event.player.getPosition()))>=5){
                    if(PlayerUtil.isPlayerArmorEnchanted(event.player,EnchantmentRegistry.shadowborn_enchantment.get())){
                        event.player.removeActivePotionEffect(Effects.BLINDNESS);
                    }
                }
            }
            if(event.player.world.getLight(new BlockPos(event.player.getPosition()))<=5){
                if(PlayerUtil.isPlayerArmorEnchanted(event.player,EnchantmentRegistry.shadowborn_enchantment.get())){
                    if(!event.player.isPotionActive(Effects.NIGHT_VISION)){
                        event.player.addPotionEffect(new EffectInstance(Effects.NIGHT_VISION,1200));
                    }
                }
            }
        }
    }

I think this thing is purely logic-thing so i run it on !world.isRemote, the logic server-side.

But in game(Client), the blindness effect has never been removed.

I checked the debug panel and it's said the the effect has been removed in server-side.

SO is it a bug or I wrote code wrongly? If it's a bug how can I fix or bypass it?

Thanks so much!

2 hours ago, diesieben07 said:

First of all, TickEvent always fires twice every tick, check TickEvent#phase.

Other than that, the code looks correct and should work.

Thank you. I'll Check it.